1 /*- 2 * Copyright (c) 2003 John Baldwin <jhb@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/bus.h> 33 #include <sys/kernel.h> 34 #include <sys/limits.h> 35 #include <sys/malloc.h> 36 #include <sys/smp.h> 37 #include <vm/vm.h> 38 #include <vm/pmap.h> 39 40 #include <x86/apicreg.h> 41 #include <machine/intr_machdep.h> 42 #include <x86/apicvar.h> 43 #include <machine/md_var.h> 44 #include <x86/vmware.h> 45 46 #include <contrib/dev/acpica/include/acpi.h> 47 #include <contrib/dev/acpica/include/actables.h> 48 49 #include <dev/acpica/acpivar.h> 50 #include <dev/pci/pcivar.h> 51 52 /* These two arrays are indexed by APIC IDs. */ 53 static struct { 54 void *io_apic; 55 UINT32 io_vector; 56 } *ioapics; 57 58 static struct lapic_info { 59 u_int la_enabled; 60 u_int la_acpi_id; 61 } lapics[MAX_APIC_ID + 1]; 62 63 int madt_found_sci_override; 64 static ACPI_TABLE_MADT *madt; 65 static vm_paddr_t madt_physaddr; 66 static vm_offset_t madt_length; 67 68 static MALLOC_DEFINE(M_MADT, "madt_table", "ACPI MADT Table Items"); 69 70 static enum intr_polarity interrupt_polarity(UINT16 IntiFlags, UINT8 Source); 71 static enum intr_trigger interrupt_trigger(UINT16 IntiFlags, UINT8 Source); 72 static int madt_find_cpu(u_int acpi_id, u_int *apic_id); 73 static int madt_find_interrupt(int intr, void **apic, u_int *pin); 74 static void madt_parse_apics(ACPI_SUBTABLE_HEADER *entry, void *arg); 75 static void madt_parse_interrupt_override( 76 ACPI_MADT_INTERRUPT_OVERRIDE *intr); 77 static void madt_parse_ints(ACPI_SUBTABLE_HEADER *entry, 78 void *arg __unused); 79 static void madt_parse_local_nmi(ACPI_MADT_LOCAL_APIC_NMI *nmi); 80 static void madt_parse_nmi(ACPI_MADT_NMI_SOURCE *nmi); 81 static int madt_probe(void); 82 static int madt_probe_cpus(void); 83 static void madt_probe_cpus_handler(ACPI_SUBTABLE_HEADER *entry, 84 void *arg __unused); 85 static void madt_register(void *dummy); 86 static int madt_setup_local(void); 87 static int madt_setup_io(void); 88 static void madt_walk_table(acpi_subtable_handler *handler, void *arg); 89 90 static struct apic_enumerator madt_enumerator = { 91 "MADT", 92 madt_probe, 93 madt_probe_cpus, 94 madt_setup_local, 95 madt_setup_io 96 }; 97 98 /* 99 * Look for an ACPI Multiple APIC Description Table ("APIC") 100 */ 101 static int 102 madt_probe(void) 103 { 104 105 madt_physaddr = acpi_find_table(ACPI_SIG_MADT); 106 if (madt_physaddr == 0) 107 return (ENXIO); 108 return (-50); 109 } 110 111 /* 112 * Run through the MP table enumerating CPUs. 113 */ 114 static int 115 madt_probe_cpus(void) 116 { 117 118 madt = acpi_map_table(madt_physaddr, ACPI_SIG_MADT); 119 madt_length = madt->Header.Length; 120 KASSERT(madt != NULL, ("Unable to re-map MADT")); 121 madt_walk_table(madt_probe_cpus_handler, NULL); 122 acpi_unmap_table(madt); 123 madt = NULL; 124 return (0); 125 } 126 127 /* 128 * Initialize the local APIC on the BSP. 129 */ 130 static int 131 madt_setup_local(void) 132 { 133 ACPI_TABLE_DMAR *dmartbl; 134 vm_paddr_t dmartbl_physaddr; 135 u_int p[4]; 136 137 madt = pmap_mapbios(madt_physaddr, madt_length); 138 if ((cpu_feature2 & CPUID2_X2APIC) != 0) { 139 x2apic_mode = 1; 140 dmartbl_physaddr = acpi_find_table(ACPI_SIG_DMAR); 141 if (dmartbl_physaddr != 0) { 142 dmartbl = acpi_map_table(dmartbl_physaddr, 143 ACPI_SIG_DMAR); 144 if ((dmartbl->Flags & ACPI_DMAR_X2APIC_OPT_OUT) != 0) { 145 x2apic_mode = 0; 146 if (bootverbose) 147 printf( 148 "x2APIC available but disabled by DMAR table\n"); 149 } 150 acpi_unmap_table(dmartbl); 151 } 152 if (vm_guest == VM_GUEST_VMWARE) { 153 vmware_hvcall(VMW_HVCMD_GETVCPU_INFO, p); 154 if ((p[0] & VMW_VCPUINFO_VCPU_RESERVED) != 0 || 155 (p[0] & VMW_VCPUINFO_LEGACY_X2APIC) == 0) { 156 x2apic_mode = 0; 157 if (bootverbose) 158 printf( 159 "x2APIC available but disabled inside VMWare without intr redirection\n"); 160 } 161 } else if (vm_guest == VM_GUEST_XEN) { 162 x2apic_mode = 0; 163 } 164 TUNABLE_INT_FETCH("hw.x2apic_enable", &x2apic_mode); 165 } 166 167 lapic_init(madt->Address); 168 printf("ACPI APIC Table: <%.*s %.*s>\n", 169 (int)sizeof(madt->Header.OemId), madt->Header.OemId, 170 (int)sizeof(madt->Header.OemTableId), madt->Header.OemTableId); 171 172 /* 173 * We ignore 64-bit local APIC override entries. Should we 174 * perhaps emit a warning here if we find one? 175 */ 176 return (0); 177 } 178 179 /* 180 * Enumerate I/O APICs and setup interrupt sources. 181 */ 182 static int 183 madt_setup_io(void) 184 { 185 void *ioapic; 186 u_int pin; 187 int i; 188 189 /* Try to initialize ACPI so that we can access the FADT. */ 190 i = acpi_Startup(); 191 if (ACPI_FAILURE(i)) { 192 printf("MADT: ACPI Startup failed with %s\n", 193 AcpiFormatException(i)); 194 printf("Try disabling either ACPI or apic support.\n"); 195 panic("Using MADT but ACPI doesn't work"); 196 } 197 198 ioapics = malloc(sizeof(*ioapics) * (MAX_APIC_ID + 1), M_MADT, 199 M_WAITOK | M_ZERO); 200 201 /* First, we run through adding I/O APIC's. */ 202 madt_walk_table(madt_parse_apics, NULL); 203 204 /* Second, we run through the table tweaking interrupt sources. */ 205 madt_walk_table(madt_parse_ints, NULL); 206 207 /* 208 * If there was not an explicit override entry for the SCI, 209 * force it to use level trigger and active-low polarity. 210 */ 211 if (!madt_found_sci_override) { 212 if (madt_find_interrupt(AcpiGbl_FADT.SciInterrupt, &ioapic, 213 &pin) != 0) 214 printf("MADT: Could not find APIC for SCI IRQ %u\n", 215 AcpiGbl_FADT.SciInterrupt); 216 else { 217 printf( 218 "MADT: Forcing active-low polarity and level trigger for SCI\n"); 219 ioapic_set_polarity(ioapic, pin, INTR_POLARITY_LOW); 220 ioapic_set_triggermode(ioapic, pin, INTR_TRIGGER_LEVEL); 221 } 222 } 223 224 /* Third, we register all the I/O APIC's. */ 225 for (i = 0; i <= MAX_APIC_ID; i++) 226 if (ioapics[i].io_apic != NULL) 227 ioapic_register(ioapics[i].io_apic); 228 229 /* Finally, we throw the switch to enable the I/O APIC's. */ 230 acpi_SetDefaultIntrModel(ACPI_INTR_APIC); 231 232 free(ioapics, M_MADT); 233 ioapics = NULL; 234 235 return (0); 236 } 237 238 static void 239 madt_register(void *dummy __unused) 240 { 241 242 apic_register_enumerator(&madt_enumerator); 243 } 244 SYSINIT(madt_register, SI_SUB_TUNABLES - 1, SI_ORDER_FIRST, madt_register, NULL); 245 246 /* 247 * Call the handler routine for each entry in the MADT table. 248 */ 249 static void 250 madt_walk_table(acpi_subtable_handler *handler, void *arg) 251 { 252 253 acpi_walk_subtables(madt + 1, (char *)madt + madt->Header.Length, 254 handler, arg); 255 } 256 257 static void 258 madt_add_cpu(u_int acpi_id, u_int apic_id, u_int flags) 259 { 260 struct lapic_info *la; 261 262 /* 263 * The MADT does not include a BSP flag, so we have to let the 264 * MP code figure out which CPU is the BSP on its own. 265 */ 266 if (bootverbose) 267 printf("MADT: Found CPU APIC ID %u ACPI ID %u: %s\n", 268 apic_id, acpi_id, flags & ACPI_MADT_ENABLED ? 269 "enabled" : "disabled"); 270 if (!(flags & ACPI_MADT_ENABLED)) 271 return; 272 if (apic_id > MAX_APIC_ID) { 273 printf("MADT: Ignoring local APIC ID %u (too high)\n", 274 apic_id); 275 return; 276 } 277 278 la = &lapics[apic_id]; 279 KASSERT(la->la_enabled == 0, ("Duplicate local APIC ID %u", apic_id)); 280 la->la_enabled = 1; 281 la->la_acpi_id = acpi_id; 282 lapic_create(apic_id, 0); 283 } 284 285 static void 286 madt_probe_cpus_handler(ACPI_SUBTABLE_HEADER *entry, void *arg) 287 { 288 ACPI_MADT_LOCAL_APIC *proc; 289 ACPI_MADT_LOCAL_X2APIC *x2apic; 290 291 switch (entry->Type) { 292 case ACPI_MADT_TYPE_LOCAL_APIC: 293 proc = (ACPI_MADT_LOCAL_APIC *)entry; 294 madt_add_cpu(proc->ProcessorId, proc->Id, proc->LapicFlags); 295 break; 296 case ACPI_MADT_TYPE_LOCAL_X2APIC: 297 x2apic = (ACPI_MADT_LOCAL_X2APIC *)entry; 298 madt_add_cpu(x2apic->Uid, x2apic->LocalApicId, 299 x2apic->LapicFlags); 300 break; 301 } 302 } 303 304 305 /* 306 * Add an I/O APIC from an entry in the table. 307 */ 308 static void 309 madt_parse_apics(ACPI_SUBTABLE_HEADER *entry, void *arg __unused) 310 { 311 ACPI_MADT_IO_APIC *apic; 312 313 switch (entry->Type) { 314 case ACPI_MADT_TYPE_IO_APIC: 315 apic = (ACPI_MADT_IO_APIC *)entry; 316 if (bootverbose) 317 printf( 318 "MADT: Found IO APIC ID %u, Interrupt %u at %p\n", 319 apic->Id, apic->GlobalIrqBase, 320 (void *)(uintptr_t)apic->Address); 321 if (apic->Id > MAX_APIC_ID) 322 panic("%s: I/O APIC ID %u too high", __func__, 323 apic->Id); 324 if (ioapics[apic->Id].io_apic != NULL) 325 panic("%s: Double APIC ID %u", __func__, apic->Id); 326 if (apic->GlobalIrqBase >= FIRST_MSI_INT) { 327 printf("MADT: Ignoring bogus I/O APIC ID %u", apic->Id); 328 break; 329 } 330 ioapics[apic->Id].io_apic = ioapic_create(apic->Address, 331 apic->Id, apic->GlobalIrqBase); 332 ioapics[apic->Id].io_vector = apic->GlobalIrqBase; 333 break; 334 default: 335 break; 336 } 337 } 338 339 /* 340 * Determine properties of an interrupt source. Note that for ACPI these 341 * functions are only used for ISA interrupts, so we assume ISA bus values 342 * (Active Hi, Edge Triggered) for conforming values except for the ACPI 343 * SCI for which we use Active Lo, Level Triggered. 344 */ 345 static enum intr_polarity 346 interrupt_polarity(UINT16 IntiFlags, UINT8 Source) 347 { 348 349 switch (IntiFlags & ACPI_MADT_POLARITY_MASK) { 350 default: 351 printf("WARNING: Bogus Interrupt Polarity. Assume CONFORMS\n"); 352 /* FALLTHROUGH*/ 353 case ACPI_MADT_POLARITY_CONFORMS: 354 if (Source == AcpiGbl_FADT.SciInterrupt) 355 return (INTR_POLARITY_LOW); 356 else 357 return (INTR_POLARITY_HIGH); 358 case ACPI_MADT_POLARITY_ACTIVE_HIGH: 359 return (INTR_POLARITY_HIGH); 360 case ACPI_MADT_POLARITY_ACTIVE_LOW: 361 return (INTR_POLARITY_LOW); 362 } 363 } 364 365 static enum intr_trigger 366 interrupt_trigger(UINT16 IntiFlags, UINT8 Source) 367 { 368 369 switch (IntiFlags & ACPI_MADT_TRIGGER_MASK) { 370 default: 371 printf("WARNING: Bogus Interrupt Trigger Mode. Assume CONFORMS.\n"); 372 /*FALLTHROUGH*/ 373 case ACPI_MADT_TRIGGER_CONFORMS: 374 if (Source == AcpiGbl_FADT.SciInterrupt) 375 return (INTR_TRIGGER_LEVEL); 376 else 377 return (INTR_TRIGGER_EDGE); 378 case ACPI_MADT_TRIGGER_EDGE: 379 return (INTR_TRIGGER_EDGE); 380 case ACPI_MADT_TRIGGER_LEVEL: 381 return (INTR_TRIGGER_LEVEL); 382 } 383 } 384 385 /* 386 * Find the local APIC ID associated with a given ACPI Processor ID. 387 */ 388 static int 389 madt_find_cpu(u_int acpi_id, u_int *apic_id) 390 { 391 int i; 392 393 for (i = 0; i <= MAX_APIC_ID; i++) { 394 if (!lapics[i].la_enabled) 395 continue; 396 if (lapics[i].la_acpi_id != acpi_id) 397 continue; 398 *apic_id = i; 399 return (0); 400 } 401 return (ENOENT); 402 } 403 404 /* 405 * Find the IO APIC and pin on that APIC associated with a given global 406 * interrupt. 407 */ 408 static int 409 madt_find_interrupt(int intr, void **apic, u_int *pin) 410 { 411 int i, best; 412 413 best = -1; 414 for (i = 0; i <= MAX_APIC_ID; i++) { 415 if (ioapics[i].io_apic == NULL || 416 ioapics[i].io_vector > intr) 417 continue; 418 if (best == -1 || 419 ioapics[best].io_vector < ioapics[i].io_vector) 420 best = i; 421 } 422 if (best == -1) 423 return (ENOENT); 424 *apic = ioapics[best].io_apic; 425 *pin = intr - ioapics[best].io_vector; 426 if (*pin > 32) 427 printf("WARNING: Found intpin of %u for vector %d\n", *pin, 428 intr); 429 return (0); 430 } 431 432 void 433 madt_parse_interrupt_values(void *entry, 434 enum intr_trigger *trig, enum intr_polarity *pol) 435 { 436 ACPI_MADT_INTERRUPT_OVERRIDE *intr; 437 char buf[64]; 438 439 intr = entry; 440 441 if (bootverbose) 442 printf("MADT: Interrupt override: source %u, irq %u\n", 443 intr->SourceIrq, intr->GlobalIrq); 444 KASSERT(intr->Bus == 0, ("bus for interrupt overrides must be zero")); 445 446 /* 447 * Lookup the appropriate trigger and polarity modes for this 448 * entry. 449 */ 450 *trig = interrupt_trigger(intr->IntiFlags, intr->SourceIrq); 451 *pol = interrupt_polarity(intr->IntiFlags, intr->SourceIrq); 452 453 /* 454 * If the SCI is identity mapped but has edge trigger and 455 * active-hi polarity or the force_sci_lo tunable is set, 456 * force it to use level/lo. 457 */ 458 if (intr->SourceIrq == AcpiGbl_FADT.SciInterrupt) { 459 madt_found_sci_override = 1; 460 if (getenv_string("hw.acpi.sci.trigger", buf, sizeof(buf))) { 461 if (tolower(buf[0]) == 'e') 462 *trig = INTR_TRIGGER_EDGE; 463 else if (tolower(buf[0]) == 'l') 464 *trig = INTR_TRIGGER_LEVEL; 465 else 466 panic( 467 "Invalid trigger %s: must be 'edge' or 'level'", 468 buf); 469 printf("MADT: Forcing SCI to %s trigger\n", 470 *trig == INTR_TRIGGER_EDGE ? "edge" : "level"); 471 } 472 if (getenv_string("hw.acpi.sci.polarity", buf, sizeof(buf))) { 473 if (tolower(buf[0]) == 'h') 474 *pol = INTR_POLARITY_HIGH; 475 else if (tolower(buf[0]) == 'l') 476 *pol = INTR_POLARITY_LOW; 477 else 478 panic( 479 "Invalid polarity %s: must be 'high' or 'low'", 480 buf); 481 printf("MADT: Forcing SCI to active %s polarity\n", 482 *pol == INTR_POLARITY_HIGH ? "high" : "low"); 483 } 484 } 485 } 486 487 /* 488 * Parse an interrupt source override for an ISA interrupt. 489 */ 490 static void 491 madt_parse_interrupt_override(ACPI_MADT_INTERRUPT_OVERRIDE *intr) 492 { 493 void *new_ioapic, *old_ioapic; 494 u_int new_pin, old_pin; 495 enum intr_trigger trig; 496 enum intr_polarity pol; 497 498 if (acpi_quirks & ACPI_Q_MADT_IRQ0 && intr->SourceIrq == 0 && 499 intr->GlobalIrq == 2) { 500 if (bootverbose) 501 printf("MADT: Skipping timer override\n"); 502 return; 503 } 504 505 if (madt_find_interrupt(intr->GlobalIrq, &new_ioapic, &new_pin) != 0) { 506 printf("MADT: Could not find APIC for vector %u (IRQ %u)\n", 507 intr->GlobalIrq, intr->SourceIrq); 508 return; 509 } 510 511 madt_parse_interrupt_values(intr, &trig, &pol); 512 513 /* Remap the IRQ if it is mapped to a different interrupt vector. */ 514 if (intr->SourceIrq != intr->GlobalIrq) { 515 /* 516 * If the SCI is remapped to a non-ISA global interrupt, 517 * then override the vector we use to setup and allocate 518 * the interrupt. 519 */ 520 if (intr->GlobalIrq > 15 && 521 intr->SourceIrq == AcpiGbl_FADT.SciInterrupt) 522 acpi_OverrideInterruptLevel(intr->GlobalIrq); 523 else 524 ioapic_remap_vector(new_ioapic, new_pin, 525 intr->SourceIrq); 526 if (madt_find_interrupt(intr->SourceIrq, &old_ioapic, 527 &old_pin) != 0) 528 printf("MADT: Could not find APIC for source IRQ %u\n", 529 intr->SourceIrq); 530 else if (ioapic_get_vector(old_ioapic, old_pin) == 531 intr->SourceIrq) 532 ioapic_disable_pin(old_ioapic, old_pin); 533 } 534 535 /* Program the polarity and trigger mode. */ 536 ioapic_set_triggermode(new_ioapic, new_pin, trig); 537 ioapic_set_polarity(new_ioapic, new_pin, pol); 538 } 539 540 /* 541 * Parse an entry for an NMI routed to an IO APIC. 542 */ 543 static void 544 madt_parse_nmi(ACPI_MADT_NMI_SOURCE *nmi) 545 { 546 void *ioapic; 547 u_int pin; 548 549 if (madt_find_interrupt(nmi->GlobalIrq, &ioapic, &pin) != 0) { 550 printf("MADT: Could not find APIC for vector %u\n", 551 nmi->GlobalIrq); 552 return; 553 } 554 555 ioapic_set_nmi(ioapic, pin); 556 if (!(nmi->IntiFlags & ACPI_MADT_TRIGGER_CONFORMS)) 557 ioapic_set_triggermode(ioapic, pin, 558 interrupt_trigger(nmi->IntiFlags, 0)); 559 if (!(nmi->IntiFlags & ACPI_MADT_POLARITY_CONFORMS)) 560 ioapic_set_polarity(ioapic, pin, 561 interrupt_polarity(nmi->IntiFlags, 0)); 562 } 563 564 /* 565 * Parse an entry for an NMI routed to a local APIC LVT pin. 566 */ 567 static void 568 madt_handle_local_nmi(u_int acpi_id, UINT8 Lint, UINT16 IntiFlags) 569 { 570 u_int apic_id, pin; 571 572 if (acpi_id == 0xffffffff) 573 apic_id = APIC_ID_ALL; 574 else if (madt_find_cpu(acpi_id, &apic_id) != 0) { 575 if (bootverbose) 576 printf("MADT: Ignoring local NMI routed to " 577 "ACPI CPU %u\n", acpi_id); 578 return; 579 } 580 if (Lint == 0) 581 pin = APIC_LVT_LINT0; 582 else 583 pin = APIC_LVT_LINT1; 584 lapic_set_lvt_mode(apic_id, pin, APIC_LVT_DM_NMI); 585 if (!(IntiFlags & ACPI_MADT_TRIGGER_CONFORMS)) 586 lapic_set_lvt_triggermode(apic_id, pin, 587 interrupt_trigger(IntiFlags, 0)); 588 if (!(IntiFlags & ACPI_MADT_POLARITY_CONFORMS)) 589 lapic_set_lvt_polarity(apic_id, pin, 590 interrupt_polarity(IntiFlags, 0)); 591 } 592 593 static void 594 madt_parse_local_nmi(ACPI_MADT_LOCAL_APIC_NMI *nmi) 595 { 596 597 madt_handle_local_nmi(nmi->ProcessorId == 0xff ? 0xffffffff : 598 nmi->ProcessorId, nmi->Lint, nmi->IntiFlags); 599 } 600 601 static void 602 madt_parse_local_x2apic_nmi(ACPI_MADT_LOCAL_X2APIC_NMI *nmi) 603 { 604 605 madt_handle_local_nmi(nmi->Uid, nmi->Lint, nmi->IntiFlags); 606 } 607 608 /* 609 * Parse interrupt entries. 610 */ 611 static void 612 madt_parse_ints(ACPI_SUBTABLE_HEADER *entry, void *arg __unused) 613 { 614 615 switch (entry->Type) { 616 case ACPI_MADT_TYPE_INTERRUPT_OVERRIDE: 617 madt_parse_interrupt_override( 618 (ACPI_MADT_INTERRUPT_OVERRIDE *)entry); 619 break; 620 case ACPI_MADT_TYPE_NMI_SOURCE: 621 madt_parse_nmi((ACPI_MADT_NMI_SOURCE *)entry); 622 break; 623 case ACPI_MADT_TYPE_LOCAL_APIC_NMI: 624 madt_parse_local_nmi((ACPI_MADT_LOCAL_APIC_NMI *)entry); 625 break; 626 case ACPI_MADT_TYPE_LOCAL_X2APIC_NMI: 627 madt_parse_local_x2apic_nmi( 628 (ACPI_MADT_LOCAL_X2APIC_NMI *)entry); 629 break; 630 } 631 } 632 633 /* 634 * Setup per-CPU ACPI IDs. 635 */ 636 static void 637 madt_set_ids(void *dummy) 638 { 639 struct lapic_info *la; 640 struct pcpu *pc; 641 u_int i; 642 643 if (madt == NULL) 644 return; 645 CPU_FOREACH(i) { 646 pc = pcpu_find(i); 647 KASSERT(pc != NULL, ("no pcpu data for CPU %u", i)); 648 la = &lapics[pc->pc_apic_id]; 649 if (!la->la_enabled) 650 panic("APIC: CPU with APIC ID %u is not enabled", 651 pc->pc_apic_id); 652 pc->pc_acpi_id = la->la_acpi_id; 653 if (bootverbose) 654 printf("APIC: CPU %u has ACPI ID %u\n", i, 655 la->la_acpi_id); 656 } 657 } 658 SYSINIT(madt_set_ids, SI_SUB_CPU, SI_ORDER_MIDDLE, madt_set_ids, NULL); 659